American Institute of Certified Planners (AICP) Practice Exam

The responsibility for creating floodplain maps in the United States rests with the Federal Emergency Management Agency (FEMA). These maps are critical for understanding flood risks in various communities, guiding development, and informing insurance requirements. FEMA's Flood Insurance Rate Maps (FIRMs) are used to identify flood zones, assess risk, and help municipalities manage floodplain development. The accuracy and updates to these maps are essential for effective disaster preparation and response, as well as for sustainable land-use planning.

The other organizations mentioned do have roles in floodplain management and related activities but do not have the primary responsibility for creating floodplain maps. The USDA, for instance, is involved in agricultural programs and conservation efforts, and the Natural Resources Conservation Service (NRCS), which is a part of USDA, focuses on soil and water conservation but also does not directly create floodplain maps. The Centers for Disease Control and Prevention (CDC) is primarily focused on public health and safety and does not engage in floodplain mapping. Therefore, FEMA is the correct answer when considering who is tasked with the creation and maintenance of floodplain maps in the United States.